Alert archive / North Dakota / Tornado Watches in 2000
Tornado Watch 428
The Storm Prediction Center issued this tornado watch at Jun 11, 2000, 6:00 PM CDT for 15 counties in North Dakota. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2000, 6:00 PM CDT (23:00 UTC)
- Expired
- Jun 11, 2000, 10:00 PM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
Counties Benson County, ND, Bottineau County, ND, Cavalier County, ND, Eddy County, ND, Foster County, ND, Griggs County, ND, McHenry County, ND, Nelson County, ND, Pierce County, ND, Ramsey County, ND, Rolette County, ND, Sheridan County, ND, Steele County, ND, Towner County, ND, Wells County, ND
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 6:45 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 60 min |
| Jun 11, 7:48 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Pierce | 27 min |
| Jun 11, 7:48 PM CDT | Severe Thunderstorm Warning | BIS | Rolette | 27 min |
| Jun 11, 8:08 PM CDT | Tornado Warning | FGF | Benson, Towner | 32 min |
| Jun 11, 8:14 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Sheridan | 61 min |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 11.0 hours before the alert went out and 177 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1248 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 237 m²/s²
- 0-3 km storm-relative helicity
- 305 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
913 WWUS9 KMKC 112253 SEL8 SEL8 MKC WW 112253 NDZ000-120300- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 428 STORM PREDICTION CENTER NORMAN OK 553 PM CDT SUN JUN 11 2000 THE STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHERN AND EASTERN NORTH DAKOTA EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 600 PM UNTIL 1000 PM CDT. TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTHEAST OF MINOT NORTH DAKOTA TO 60 MILES SOUTH OF DEVILS LAKE NORTH DAKOTA. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION... CONTINUE...WW 425...WW 426...WW 427... DISCUSSION...POTENTIAL FOR LOW LEVEL ROTATION APPEARS TO BE INCREASING NEAR CREST OF SURFACE WAVE WARM SECTOR NOW NEAR MINOT. AREA VWP/PRESSURE CHANGE DATA SUPPORT CONTINUED BACKING OF LOW LEVEL FLOW INVOF WARM FRONT...SUGGESTED A RISK FOR TORNADOES THROUGH EARLY TONIGHT. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 24030. ...CORFIDI 485,0983 471,0971 471,1003 485,1015
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Burleigh, Dunn, Grant, Hettinger, McHenry and 10 more | 6 hr |
Nearby
Tornado Watches in North Dakota, 2000Every tornado watch in 2000
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.